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<h1 class="topictitle1">Updating a File Name Extension Filtering Rule</h1>
<div><p>This section describes how to update a <span>file name extension filtering rule</span> for a vStore.</p>
<div class="section"><h4 class="sectiontitle">Prerequisites</h4><p>If you need to add file name extensions to be intercepted for a vStore, create a <span>file name extension filtering rule</span> first by following the instructions in <a href="en-us_topic_0000002042963184.html">Creating a File Name Extension Filtering Rule</a>.</p>
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<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>On the navigation pane, choose <strong>Data Security</strong> &gt; <strong>Ransomware Protection</strong> &gt; <strong>Ransomware Detection Settings</strong>.</span></li><li><span>On the <span class="uicontrol"><b>Ransomware Detection Settings</b></span> tab page, locate the row that contains the desired vStore and choose <span class="menucascade"><b><span class="uicontrol">More</span></b> &gt; <b><span class="uicontrol">Update <span>File Name Extension Filtering Rule</span></span></b></span>.</span><p><p>The <span class="uicontrol"><b>Update <span>File Name Extension Filtering Rule</span></b></span> dialog box is displayed.</p>
<p><span><img src="en-us_image_0000002079044069.png" height="530.7557850000001" width="360.0975"></span></p>
<p>Select or deselect <span>file name extension filtering rules</span> in the list as required. All selected <span>file name extension filtering rules</span> are automatically associated with the current vStore.</p>
<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p>By default, all file name extension filtering rules that have been associated with the current vStore are selected.</p>
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</p></li><li><span>Click <span class="uicontrol"><b>OK</b></span>.</span></li></ol>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000002042963220.html">Configuring a File Name Extension Filtering Rule</a></div>
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